Recent content by s.gautam

Yes,it can,but not until its in a closed loop.With biot-savart law,we find out the field of a finite segment of wire which is not a closed loop,and this is what's troubling me.

I guess I should post it in a new thread.

Hey another thought occurred to me,how can we apply biot-savart's law to determine the magnetic field of a finite length wire? Biot-savart's law is also valid for only steady currents.

Yes,I agree with NeoDavin. It makes sense,but its not that rigorous.

For the third edition,Pg 228. The line "But we know that it goes to zero for large s".

I am following the book 'Introduction to Electrodynamics' by Griffith. In that book,the magnetic field outside an infinite solenoid has been found as follows: First of all,it is proved that the magnetic field is along the axis. (I have no problems with that proof). Then,a rectangular loop is...

Thanks a lot,that was really helpful.

When we apply ampere's circuital law to finite length wire,we get the wrong answer.Why is that? The symmetry rule is being followed,so that's not the problem. Is it because a finite length wire means that charge is piling up somewhere which means that the current is not steady?